Machine for making box-blanks



(No Model.) 8 1'2 Sheets-Sheet 1. T. L. KNUDTSON & J. UHRI. MACHINE FOR MAKING BOX BLANKS.

No. 518,038. 8 Patented Apr.- 10, 1894.

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T. L. KNUDTSON & J. UHRI. MACHINE-FOR MAKING BOX BLANKS.

No. 518,038. Patented Apr. 10, 1894.-

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T, L. KNUDTSON 811 J. .UHRI. MACHINE FOR MAKINGBOX BLANKS.

No. 518,038. Patented Apr. 10, 1894.

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MAGHINE FOR MAKING BOX BLANKS.

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No. 518,038 Patented Apr. 10, 18-94;-

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MACHINE FOR MAKING Box B'LANKS.

No. 518,038. Patented Apr. 10, 1894.

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MACHINE FOR MAKING BOX BLANKS;

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T L KNUDTSON 80 J UHRI MACHINE FOR MAKING BOX BLANKS.

Patented Apr. 10, 1894.

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'No. 518,038. Patented Apr. 10, 1894.

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T. L. KNUDTSON & J. UHRI. MACHINE FOR MAKING BOX BLANKS.

.No. 518,038. Patented Apr. 10, 1894.

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Patented Apr. 10, 1894.

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T. L. KNUDTSON 8z; J. UHRI. MACHINE FOR MAKING BOX BLANKS.

N0. 518,038. Patented Apr. 10 1894.

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T. L. KNUDTSON 8; J. UHRI. MACHINE FOR MAKING BOX BLANKS No. 518,038. PatentedAppFTLO; 1894.

(H0 Model.) 4 I 17 Sheets-Sheet 17. T. L. KNUDTvSON- 8v J.'U HBI. MACHINE FOR MAKING BOX BLAN KS.

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NETED STATES THURSTON L. KNUDTSON AND JACOB Ul- IRI, OF OHICAGO, ILLINOIS.

MACHINE FOR MAKING BQX -BLANKS.

SPECIFICATION forming part of Letters Patent No. 518,038, dated April 10, 1894.

Application filed February 10, 1893. Serial No. 461,785. (No modeli) To aZZ whom it may concern.-

Be it known that we, THURSTON L. KNUDT- SON and JACOB UHRI, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvementin Machines for Making Box-Blanks, of which the following is a specification.

Our Object, broadly stated, is to provide a machine of improvedconstruction, for drivcleats together. In Figure of the drawings,

a broken perspective view is given of the blank to be manufactured. The thin sheet of lumber is formed of veneering or backing in strips of the same or different widths extending side by side. The cleats, usually, though not necessarily four in number, extend transversely of the strips which afford the sheet, and the strengthening wires extend transversely of the said strips andcoincidently with the cleats as shown. The ends of the wires extend beyond the opposite'ends of the blank as shown.

Our present invention has only to do with the manufacture of blanks of the general form shown in the figure referred to, but it may be stated that to form theblanks into boxes the cleats are cut, as indicated by dotted lines, to make four separate lengths and the blank is bent over at the points where the cleats are cut to afford the four sides of the box, the opposite ends of the blank being secured by twisting'together the projecting ends of the wires. The cleats at the opposite ends of the blank, when the latter is bent into the form of a box as described, are at the opposite ends respectively of the box, and box ends may be nailed or otherwise secured upon the said end cleats to complete the box.

In the machine forming thesubject'of the present application, the cleats are placed in guides extending longitudinally of'the machine, strips of backing, veneering or the like are placed upon andtransversely of the cleats and the machineis then set in motion to carry the cleats, and a sheet formed by the strips of backingor veneering, beneath devices which feed strengthening wires to the sheet and staple the same to the sheet and cleats, as before stated, to produce the blank.

In the drawings'Fig. 1 is an elevation partly-broken of one side of the machine; Fig. 2, a view in elevation of the opposite side of the machine; Fig. 3, a sectional plan View with a part broken away, the section being taken on line 3 of Fig.1; Fig. 4,a vertical cross section taken on line 4 of Fig. 1;

Fig. 5, an enlarged section taken on line 5 of Fig. 3 in the direction of the arrow and illusvtrating mechanism for raising and lowering the bed of the machine; Fig. 6, a cross section of a detail of the raising and lowering mechanism taken on line 6 of Figs. 5 and 8;

Fig. 7, a broken sectional plan view of one corner portion of the bed frame, the section being taken on line 7 of Fig. 5; Fig. 8, a broken sectional elevation taken on line 8 of Fig. 7; Fig. 9, a section taken on line 9 of ,Fig. 5 across the machine, in the direction of the arrow, and showing the connecting shaft between the raising and lowering mechanisms at opposite sides of the bed frame; Figs. 10 and 11 perspective detail views 'of cam faced bearings forming part of the said raising and lowering mechanism; Fig. 12, an enlarged broken, and partly sectional, view of details forming part of the feed mechanism for the material to be worked upon, the section being taken on line'12 of Fig.5; Fig. 13, a broken sectional plan view taken on line 13- of Fig. 12 in the direction of the arrow; Fig. 14, a section taken on line 14 of Fig. 3,- viewed in the direction of the arrow, and showing one of the end cleat guides with its attachments in elevation; Figs. 15 and 15* broken sectional plan views of end portions of the guide bar shown in Fig. 14, the section being taken on line 15 of Fig. 16; Fig. 16, an en larged section taken on line 16 of Fig. 14, and viewed inthe direction of the arrow; Fig. 17, an enlarged view broken away at the ends showing the opposite side of the guide bar illustrated in Fig. 14; Fig. 18, a perspective detail View of one of the spring clamps .fora

cleat, mounted on the guide bar described; Fig. 19, a broken cross section of the machine, the section being taken on line 19 of Fig. 3, and viewed in the direction of the arrow; Fig. 20, a broken section taken on line 20 of Fig. 19, viewed in the direction of the arrow, and enlarged; Fig. 21, an enlarged section of a detail, the section being taken on line 21 of Fig. 19 and viewed in the direction of the arrow; Fig. 22, a section taken on line 22 of Fig. 19, and illustrating a slide bar detail; Fig. 23, atop plan view of the slide bar shown in Fig. 22; Fig. 24, an enlarged section taken on line 24 of Fig. 3, showing details of construction; Figs. 25 and 26 enlarged sections taken, respectively, on lines 25 and 26 of Fig. 19 showing certain details in elevation; Fig. 27, a section taken on line 27 of Fig. 25, and viewed in the direction of the arrow; Fig. 28, a perspective view of a crank; Figs. 29 and 30 perspective views of details of the feed mechanism forthe material to be workedupon; Fig. 31, an enlarged broken plan view of supporting racks for spools carrying wires; Fig. 32, a section taken on line 32 of Fig. 31, and viewed in the direction of the arrow; Fig. 33, a partly broken side elevation of one of the spool supports; Figs. 34 and 35 enlarged broken sectional views taken respectively on lines 34 and 35 of Fig. 4; Fig. 36, a section on line 36 of Fig. 37 viewed in the direction of the arrow; Fig. 37, a broken section taken on line 37 of Fig. 34; Fig. 38, a broken plan sectional view taken on line 38 of Fig. 34; Fig. 39, a broken side elevation of certain features of the construction of the parts shown in Figs. 35, 36 and 37, detached; Fig. 40, a broken sectional elevation showing in detail certain features illustrated in Fig. 34, the section being taken on line 40 of Fig. 41; Figs. 41 and 42 broken sectional plan views taken on lines 41 and 42, respectively, of Fig. 40; Fig. 43, a perspective view of a switch cam shown in Fig. 2; Fig. 44, a view in side elevation of a bracket detail; Fig. 45, a front elevation of the same; Fig. 46, a detail view of cranks and a link connection therefor; Fig. 47, a broken view in side elevation of the switch cam illustrated in Fig. 43, showing it in proper relation to switch mechanism illustrated partly in section and partly in elevation in Fig. 48, the section being on line 48 of Fig. 44, viewed in the direction of the arrow; Fig. 49, a sectional view of parts of the switch mechanism connected with and actuated by the mechanism shown in Fig. 48; Fig. 50, a sectional plan view taken on line 50 of Fig. 45, and showingan operating handle; Fig. 51, a detail View in front elevation of the handle illustrated in Fig. 50; Fig. 52, a broken section taken on line 52 of Fig. 34; Fig. 53, a broken view in front elevation of the mechanism part of the mechanism illustrated in Fig. 55;

Fig. 57, a vertical central section of the clincher, thesection being taken on line 57 of Fig. 58; Fig. 58, a front elevation of the clincher shown in Fig. 55; Fig. 59, an enlarged sectional elevation of clutch mechanism forstarting and stopping the machine, thesection being taken on line 59 of Fig. 61, corresponding with line 59 of Fig. 1; Figs. 60 and 61 sections taken,

respectively, on lines 60 and 61 of Fig. 59 and viewed as indicated by the arrows; Fig. 62, an enlarged perspective view of a worm sleeve forming part of the operating mechanism for the clutch shown in Figs. 59, 60 and 61; Fig. 63, a broken perspective detail view of other features of the said clutch operating mechanism; Fig. 64, broken perspective views of details of mechanism for-operating the clutch to start and stop the machine; Fig. 65, a broken perspective view of one of the box blanks which the machine is designed to manufacture; and Fig. 66, a longitudinal section taken on line 66 of Fig. 3 and viewedin the direction of the arrow.

A is the main frame of the machine formed with the side castings A A secured together in rigid relation by a cross bar t at the rear of the machine, a similarcross bar at theforward end portion thereof, other across extending bars, which will be hereinafter referred to, and a cross beam A On the side A is a bracket A shown most clearly in Fig. 4.

B is the drive shaft of the machine journaled in bearings s s and at the tops, respectively, of the sides A A and bracket A Loose upon the drive shaft 13 is a driver in the form of an integral fly-wheel B and step pulley B On the inner side of the fly'wheel is a lug B carrying an arm B which extends toward the shaft B in a plane parallel with the fly-wheel. At the outer side of the free end of the arm 13 is a wheel B The mechanism for producing and releasing engagement between the drive pulleys B and the drive shaft B is shown in detail in Figs. 59 to 64 inclusive. The inner face of the hub portion of the fly wheel is provided with two diametrically opposed threaded openings' B in which are screwed two short pins B At the side of the hub of the fly-wheel is a sleeve 0 fixed to the shaft and having a circumferential annular recess 4", and provided in its face adjacent to the fly-wheel with an annular groove 7' into which the pins 13. project. Extending through the sleeve 0' parallel with and at opposite sides of the shaft B are diametrically opposed openings T which intersect the groove 0*. Extending from the openings r to the recess 0" are elongated openings or slots T In the openings r and adapted to slide therein are pins r Around the recess 4" is a loose collar having a circumferential groove 7. Extending through radial openings in the collar r and through the slots r are pins T which engage openings in the pins r to form virtually integral parts of the latter. Movement of the collar r in the direction of the hub of the fly-wheel causes it to move the pins r in the slots 1', and through the said pins to move the pins r longitudinally in the direction of the hub of the fly-Wheel, and into the path of the pins 13 whereby the shaft will be revolved with the fly-wheel and drive pulleys.

Movement of the clutch described to bring about the engagement of the shaft'B and the drive pulleys is effected by means of the following shipping mechanism: (See Figs. 1, 2,

- 59 and 64.) .Tournaled in araising and lowering bed frame to be hereinafterdescribed and extending transversely across the machine near the forward end of the latter is a rod g which projects beyond'thc side A On the end portion of the said shaft is a link q. Directly below and extending parallel with the rod q is a shaft (1 provided adjacent to the side A with a crank g Pivoted upont-he end of the shaft and at its opposite end to the free endof the link q is a stay rod o. On the end of the link q'isa handle g in the form of a bell crank pivoted between its ends to the link q. A link g is pivotallycom nected at its opposite ends to the short arm of the handle (1 and the free end-of the crank At the side A of the machine the. shaft g carries a crank g pivotally connected at its free end with a reciprocal backward extending bar g A bell crank lever q is pivoted at to the lower end of the bracket A at the inner face of the latter, and at the end of one of its arms is pivotally connected with the bar g Between the bracket A and side A of the machine is a vertical recess (see Fig. 4) formed bya concavity of the bracket, in which is a vertically reciprocal rod q pivotally connected at its lower end with the bell crank q", as shown most clearly in Fig. 64:. At the top of the rod q (as most clearly shown in Fig. 59), and fixed to the said rod is a horizontal plate Q12 from'the center of which rises a vertical rod movable in a guide opening in the end of a bracket i on the side A of the machine. A and extending in an upward direction between the same and the fly-wheel B is a bracket 25 provided in its upper end with a recess t and at its side adjacent to the frame A with a recess i Journaled in'the bracket and extending across the recess 25 is a short shaft 25 and on the said shaft in the recess 15 is a bell crank lever q pivotally connected at the free end of one of its arms with the upper end of the rod Parallel with the shaft B and extending across the recess t through openings in the bracket t is a longitudinally movable shaft q, carrying at its rear end a grooved collar Q16, and at its forward end an arm q". At the upperend of the bell crank On the side lever is a pin Q18 which extends loosely into the groove of the collar (1 The shaft is provided with alongitudinal groove 01' keyway (119 (see Fig. 63), and on the said shaft in the recess t of the bracket is a worm sleeve provided with a feather Q21, which extends lug Q26, which engages the worm of the worm sleeve (7 as-shown most clearly in Fig. 59.

On theshaft B between the sleeve r and the.

bearing 3 is a collar r carrying aradially extendingarm r and on the shaft (115 between the bracketst and the collar Q16 is a collar @1 having a radially extending arm c1 On the arm 7' is a wheel 4". To bring aboutengagement of the clutch mechanism, to cause the shaft B to be revolved by the drive pulleys, the handle g is turned in the direction of the arrow (Fig. 64), raising the link g and crank g to turn the shaft g and crank g in the direction of the arrow. Thebarq is thus thrust backward turning the bell crank g and drawing down the rod q, plate and rod to turn the bell crank lever in the direction which causes it to move the shaft q toward the side A. This movement of the shaft carries-the free end of the arm Q17 into the path of the Wheel 13 on the end of the arm B which rotates with the fly-wheel. The arm q" is formed with a cam edge, as shown in Fig. 61, against which the wheel B strikes, operating to turn the arm q" in the direction of the arrow toa position at the 0pposite end of the dotted arc in Fig. 61. When the arm arrives at that position it extends beyond the path of the engaging wheel B The turning of the shaft by the arm Q17 turns the worm sleeve (1 in the direction which swings the upper end of the stirrup frame Q23 on its pivot Q22 in the direction of the fly-Wheel carrying the collar 1" in the same direction,

and thus forcing the pins r into the path of the pins 8*, as before described.

To stop the machine the handle g is turned in the opposite'direction to that described, causing the shaft to be forcedin the direc tion of the fly-wheel, and carry the arm Q28 into the path of the wheel 0" on the arm 7" whereby the shaft q and worm are turned in the contrary direction to that described, and swing the upper end of the stirrup frame in the direction away from the fly-wheel to move the collar r and-pins Win the same. direction, whereby the pins r are withdrawn from the path of the pins'Bl- The-clutch mechanism as described is employed in order that the machinery may always stop when its 

